Wymiotowanie krwi
Etiologia i przyczyny

Hematemeza jest objawem wskazującym na krwawienie z górnego odcinka przewodu pokarmowego, obejmującego jamę ustną, gardło, przełyk, żołądek oraz dwunastnicę. Kolor krwi w wymiocinach może się różnić od jasnoczerwonego, przez ciemnoczerwony, do brunatnego lub wyglądu fusów po kawie, co odzwierciedla różne źródła i stopień trawienia krwi. Najczęstsze etiologie to wrzody trawienne (żołądka i dwunastnicy) związane z Helicobacter pylori lub długotrwałym stosowaniem NLPZ, zapalenia błony śluzowej (gastritis, esophagitis, duodenitis), zespół Mallory’ego-Weissa, żylaki przełyku w przebiegu marskości wątroby oraz urazy mechaniczne. Dodatkowo, choroby wątroby, nowotwory przewodu pokarmowego, zaburzenia krzepnięcia oraz stosowanie leków przeciwzakrzepowych mogą nasilać ryzyko krwawienia. Warto podkreślić, że NLPZ i aspiryna hamują syntezę prostaglandyn, co osłabia ochronę błony śluzowej i sprzyja krwawieniom.

Etiologia Wymiotowania Krwi

Wymiotowanie krwi (hematemeza) to objaw, który zawsze wymaga natychmiastowej uwagi medycznej. Wskazuje on na krwawienie w górnym odcinku przewodu pokarmowego, który obejmuje jamę ustną, gardło, przełyk, żołądek oraz początkową część jelita cienkiego (dwunastnicę). Krew w wymiocinach może mieć kolor jasno czerwony, ciemno czerwony, brązowy lub wygląd przypominający fusy po kawie. Obecność krwi w wymiocinach nigdy nie jest stanem normalnym i może stanowić zagrożenie dla życia12.

Wrzody i stany zapalne przewodu pokarmowego

Wrzody trawienne to jedna z najczęstszych przyczyn wymiotowania krwi. Wrzody mogą występować w żołądku (wrzody żołądka) lub w dwunastnicy (wrzody dwunastnicy). Powstają one najczęściej w wyniku zakażenia bakterią Helicobacter pylori lub długotrwałego stosowania niesteroidowych leków przeciwzapalnych (NLPZ), w tym aspiryny. Wrzód może uszkodzić naczynie krwionośne, prowadząc do krwawienia123.

Zapalenie żołądka (gastritis) i zapalenie przełyku (esophagitis) to stany zapalne, które mogą prowadzić do krwawienia. Przyczynami tych stanów mogą być nadmierne spożycie alkoholu, długotrwałe stosowanie NLPZ, infekcje oraz ciężka choroba refluksowa przełyku (GERD). Zapalenie może uszkodzić naczynia krwionośne znajdujące się pod błoną śluzową, powodując krwawienie132.

Zapalenie dwunastnicy (duodenitis) podobnie jak zapalenie żołądka, może prowadzić do krwawienia. Przyczyny są podobne do tych powodujących wrzody dwunastnicy34.

Uszkodzenia mechaniczne przewodu pokarmowego

Zespół Mallory’ego-Weissa to rozdarcie w błonie śluzowej przełyku lub żołądka, spowodowane gwałtownymi wymiotami. Często występuje po spożyciu zbyt dużej ilości alkoholu lub po długotrwałych, intensywnych wymiotach z innych przyczyn. Rozdarcie to może prowadzić do krwawienia, które objawia się krwią w wymiocinach125.

Uraz mechaniczny bezpośrednio w obszarze żołądka lub przełyku może spowodować ostre krwawienie wewnętrzne. Urazy mogą wynikać z wypadków, ale również rzadko mogą być skutkiem ubocznym procedur medycznych16.

Problemy naczyniowe

Żylaki przełyku (varices) to powiększone żyły w dolnej części przełyku, a czasami także w żołądku. Występują najczęściej u osób z ciężkimi chorobami wątroby, takimi jak marskość. Żylaki te mogą pęknąć i powodować krwawienie, które może być bardzo poważne i zagrażające życiu153.

Nadciśnienie wrotne, które jest konsekwencją marskości wątroby, powoduje zwiększone ciśnienie w żyłach brzusznych. Może to prowadzić do powiększenia żył w przełyku i żołądku, czyniąc je kruchymi i łatwymi do pęknięcia. Krwawienie z tych żylaków może być bardzo poważne17.

Nieprawidłowości naczyń krwionośnych, takie jak angiodysplazje (nieprawidłowe naczynia krwionośne na powierzchni żołądka i jelit) mogą powodować krwawienie z górnego odcinka przewodu pokarmowego18.

Choroby wątroby i trzustki

Przewlekłe zapalenie trzustki może uszkodzić naczynia krwionośne otaczające trzustkę, prowadząc do ich pęknięcia i krwawienia. Krew może przedostać się do dwunastnicy i być wymiotowana19.

Choroby wątroby, takie jak marskość, ostre niewydolności wątroby, alkoholowe zapalenie wątroby, czy stłuszczenie wątroby, mogą zwiększać ryzyko krwawienia z żylaków przełyku i żołądka10311.

Nowotwory jako przyczyna wymiotowania krwi

Nowotwory łagodne i złośliwe mogą być przyczyną krwawienia. Krwawiący guz powinien być przebadany pod kątem raka żołądka, przełyku lub trzustki. Nowotwory te często towarzyszą im inne objawy, takie jak ból brzucha, utrata masy ciała11213.

Nowotwory te są rzadkie, ale należy je podejrzewać, szczególnie jeśli pacjent ma powyżej 55 lat i znacznie stracił na wadze1214.

Inne choroby i zaburzenia

Zaburzenia krzepnięcia krwi, takie jak hemofilia, anemia, trombocytopenia, czy białaczka, mogą prowadzić do samoistnego krwawienia w różnych częściach ciała, w tym w przewodzie pokarmowym3155.

Przedłużone lub intensywne wymioty z jakiejkolwiek przyczyny mogą prowadzić do uszkodzenia małych naczyń krwionośnych w gardle, co może powodować pojawienie się smug krwi w wymiocinach54.

Leki i substancje toksyczne

Długotrwałe stosowanie niesteroidowych leków przeciwzapalnych (NLPZ) lub aspiryny może powodować podrażnienie błony śluzowej żołądka i prowadzić do krwawienia. NLPZ i aspiryna mogą hamować produkcję prostaglandyn, które chronią błonę śluzową żołądka przed działaniem kwasu15316.

Leki przeciwzakrzepowe (rozrzedzające krew), takie jak warfaryna czy nowsze doustne antykoagulanty (np. rywaroksaban, apiksaban, dabigatran) same w sobie nie powodują krwawienia, ale jeśli istnieje już jakiś problem (np. wrzód), mogą nasilać krwawienie1610.

Zatrucie substancjami toksycznymi, takimi jak kwas żrący czy arszenik, może również prowadzić do krwawienia z przewodu pokarmowego314.

Inne przyczyny wymiotowania krwi

Połknięta krew pochodząca z innych źródeł może również powodować wymiotowanie krwią. Na przykład, krew może zostać połknięta po silnym krwotoku z nosa lub po zabiegu chirurgicznym w jamie ustnej153.

Ciężka choroba refluksowa przełyku (GERD) może powodować podrażnienie błony śluzowej przełyku i prowadzić do krwawienia312.

Dieulafoy’ego zmiana to nieprawidłowo położona tętnica, która przebija się przez ścianę żołądka. Może ona ulec uszkodzeniu i spowodować krwawienie46.

Szczególne przyczyny wymiotowania krwi u niemowląt i dzieci

U niemowląt i małych dzieci, wymiotowanie krwią może mieć dodatkowe przyczyny, takie jak:

  • Wady wrodzone417
  • Zaburzenia krzepnięcia krwi417
  • Alergia na mleko418
  • Połknięta krew, np. z nosa lub od matki podczas porodu418
  • Połknięty przedmiot419
  • Niedobór witaminy K417

Podsumowanie etiologii wymiotowania krwi

Wymiotowanie krwią jest objawem, który zawsze wymaga natychmiastowej oceny medycznej. Może wskazywać na szereg stanów od stosunkowo łagodnych po zagrażające życiu. Najczęstsze przyczyny to wrzody trawienne, zapalenie żołądka i przełyku, zespół Mallory’ego-Weissa oraz żylaki przełyku. Inne przyczyny obejmują choroby wątroby, nowotwory przewodu pokarmowego, urazy mechaniczne, zaburzenia krzepnięcia krwi oraz działanie niektórych leków. U dzieci występują dodatkowo specyficzne przyczyny, takie jak wady wrodzone czy alergia na mleko. Szybka diagnostyka i leczenie są kluczowe dla zapobiegania poważnym powikłaniom21.

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

  1. 09.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Hematemesis (Vomiting Blood): Causes, What it Is & Treatment
    https://my.clevelandclinic.org/health/symptoms/17708-vomiting-blood
    Hematemesis means vomiting blood. Its a very serious symptom. It usually means you have bleeding in your upper GI tract. Internal bleeding can be an emergency. […] Hematemesis is a sign of internal bleeding from the upper portion of your digestive tract the esophagus, stomach and first portion of your small intestine called the duodenum. If you’re vomiting blood, you should seek medical attention right away. […] There are many possible causes of blood in your vomit. Some are very serious. Healthcare providers cant tell how serious it is until they investigate and diagnose the cause. For this reason, healthcare providers treat all cases of hematemesis as emergencies until they know better, and you should too. […] Blood in your vomit is never normal. A small amount may indicate a more benign cause. For example, you might see a small amount of blood in your vomit simply from the trauma of vomiting. But there are many other reasons why hematemesis can occur. Its important to call your healthcare provider if youre vomiting blood at all.
  • #1 Hematemesis (Vomiting Blood): Causes, What it Is & Treatment
    https://my.clevelandclinic.org/health/symptoms/17708-vomiting-blood
    In general, vomiting blood is a sign of bleeding inside your upper GI tract. Your upper GI includes your esophagus, stomach and duodenum. Its possible to vomit blood if you swallow it due to a nosebleed or mouth bleed. But if you havent swallowed blood, its coming from inside your upper digestive system. […] Conditions that most commonly cause hematemesis include: Bleeding ulcers. A peptic ulcer is an open sore in your stomach or duodenum. Its often caused by a bacterial infection, or by the regular use of NSAIDs or aspirin. […] Acute inflammation. Inflammation of your esophagus or stomach lining can cause bleeding from the arteries underneath. Heavy alcohol use, aspirin and NSAIDs, and severe acid reflux are common causes. […] Enlarged blood vessels that rupture. Portal hypertension, a consequence of cirrhosis, causes increased pressure in your abdominal veins. This can lead to enlargement of the veins in your esophagus and stomach, making them fragile and easy to break. Bleeding from these varices can be extremely serious.
  • #1 Hematemesis (Vomiting Blood): Causes, What it Is & Treatment
    https://my.clevelandclinic.org/health/symptoms/17708-vomiting-blood
    Chronic pancreatitis. Long-term pancreatitis can damage the blood vessels surrounding your pancreas, leading to rupture and bleeding. The blood can travel into your duodenum. […] Other possible causes include: Traumatic injury. A direct, blunt injury to your stomach or esophagus may cause acute bleeding inside. Internal injuries can also rarely occur as a result of medical procedures. […] Mallory-Weiss syndrome. A Mallory-Weiss tear is a tear in your esophagus caused by violent vomiting. It usually occurs after drinking too much alcohol. […] Tumors. Both benign and malignant tumors can bleed. A bleeding tumor needs to be tested for cancer of the stomach, the esophagus or the pancreas. […] Angiodysplasias. These are abnormal surface blood vessels that can cause bleeding from your stomach and intestines.
  • #2 Vomiting Blood (Haematemesis): Causes and Symptoms
    https://patient.info/digestive-health/vomiting-blood-haematemesis
    You should call an ambulance or go directly to the nearest emergency department if you are vomiting blood. Often the bleeding will stop quite quickly but in some cases it can become severe and life-threatening. So always seek medical help quickly. […] There is a range of different causes – these are discussed below. Many causes can be treated but the first priority is to make sure the bleeding stops. […] Common causes of throwing up blood include: A stomach ulcer. Alcoholic liver disease. A tear in the gullet (oesophagus) caused by prolonged retching. Swallowed blood from a nosebleed. […] Causes include: Oesophageal varices. Varices are enlarged, swollen blood vessels in the lining of the oesophagus or stomach. They are one of the possible complications of liver cirrhosis. […] Inflammation of the oesophagus (oesophagitis) is often due to acid reflux from the stomach (gastro-oesophageal reflux disease (GORD)). The inflamed oesophagus sometimes bleeds.
  • #3 Vomiting Blood (Haematemesis): Causes and Symptoms
    https://patient.info/digestive-health/vomiting-blood-haematemesis
    Oesophageal cancer sometimes causes bleeding into the oesophagus. […] Mallory-Weiss syndrome is bleeding caused by a tear in the lining of the oesophagus or stomach. […] Causes include: Stomach (gastric) ulcer. An ulcer is a small breakdown in the lining of the stomach. An ulcer may bleed, sometimes heavily. […] Stomach cancer sometimes causes bleeding into the stomach. […] Inflammation of the stomach lining (gastritis) has similar causes to stomach ulcers. […] Varices in the lining of the stomach may occur similar to oesophageal varices described above. […] Mallory-Weiss syndrome may affect the lining of the stomach – described above. […] Causes include: Duodenal ulcer. An ulcer may bleed, sometimes heavily. […] Inflammation of the duodenum lining (duodenitis) has similar causes to duodenal ulcers.
  • #3
    https://111.wales.nhs.uk/vomitingblood/
    Vomiting blood (called haematemesis) needs to be checked. It often needs emergency treatment. […] There are many possible causes of vomiting blood. […] It’s often a sign of bleeding somewhere in your food pipe (oesophagus), which runs from your mouth to your stomach. […] Common causes of vomiting blood include: gastritis, stomach ulcers, heart burn and acid reflux, alcohol-related liver disease, damage to your food pipe from being sick or coughing a lot. […] Less common causes include: oesophageal cancer or stomach cancer, blood conditions, such as haemophilia, some medicines, including aspirin, anti-inflammatory painkillers such as ibuprofen and anticoagulant medicines (blood thinning medicines), poisoning. […] It’s also possible to vomit blood that was swallowed. For example, from a nosebleed or a baby breastfeeding on a bleeding nipple.
  • #4 Vomiting blood – Augusta HealthSearchClose SearchSearch IconSearch IconClose Search IconMobile Menu IconMobile Menu Close IconInstagramFacebookTwitterYoutube
    https://www.augustahealth.com/symptom/vomiting-blood/
    Vomiting blood (hematemesis) refers to significant amounts of blood in your vomit. Small streaks or flecks of blood in material you spit up may come from the teeth, mouth or throat and isn’t usually considered vomiting blood. Blood in vomit may be bright red, or it may appear black or dark brown like coffee grounds. […] Swallowed blood, as from a nosebleed or forceful coughing, may cause bloody vomit, but truly vomiting blood usually means something more serious and requires immediate medical attention. Bleeding in your upper gastrointestinal tract (mouth, esophagus, stomach and upper small intestine) from peptic (stomach or duodenal) ulcers or torn blood vessels is a common cause of vomiting blood. […] Vomiting blood may be caused by: Acute liver failure, Aspirin, Benign tumors of the stomach or esophagus, Cirrhosis (scarring of the liver), Defects in gastrointestinal tract blood vessels, Dieulafoy’s lesion (an artery that protrudes through the stomach wall), Duodenitis, which is inflammation of the top part of the small intestine, Esophageal cancer, Esophageal varices (enlarged veins in the esophagus), Esophagitis (inflammation of the esophagus), Gastric erosions (breakdown of tissue lining the stomach) due to H. pylori, nonsteroidal anti-inflammatory medications (NSAIDs) or other medications, Gastric varices (enlarged veins in the stomach) due to liver failure or portal hypertension, Gastritis (inflammation of the stomach lining), Gastropathy (bleeding due to dilated blood vessels in the stomach lining), Mallory-Weiss tear (tear in the esophagus associated with pressure caused by vomiting or coughing), Nonsteroidal anti-inflammatory drugs, Pancreatic cancer, Pancreatitis, Peptic ulcer, Portal hypertension (high blood pressure in the portal vein), Prolonged or vigorous vomiting, Stomach cancer. […] In infants and young children, vomiting blood may also result from: Birth defects, Blood-clotting disorders, Milk allergy, Swallowed blood, such as from the nose or from the mother during birth, Swallowed object, Vitamin K deficiency.
  • #5 FloridaHealthFinder | Vomiting blood | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/003118
    Vomiting blood is regurgitating (throwing up) contents of the stomach that contains blood. […] Conditions that cause vomiting blood can also cause blood to appear in the stool. […] The upper GI (gastrointestinal) tract includes the mouth, throat, esophagus (swallowing tube), stomach and the duodenum (first part of the small intestine). Blood that is vomited may come from any of these places. […] Vomiting that is very forceful or continues for a very long time may cause a tear in the small blood vessels of the throat. This may produce streaks of blood in the vomit. […] Swollen veins in the walls of the lower part of the esophagus, and sometimes the stomach, may begin to bleed. These veins (called varices) may be present in people with severe liver damage. […] Repeated vomiting and retching may cause bleeding and damage to the lower esophagus called Mallory Weiss tears.
  • #5 FloridaHealthFinder | Vomiting blood | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/003118
    Other causes may include: Bleeding ulcer in the stomach, first part of the small intestine, or esophagus; Blood clotting disorders; Defects in the blood vessels of the GI tract; Swelling, irritation, or inflammation of the esophagus lining (esophagitis) or the stomach lining (gastritis); Swallowing blood (for example, after a nosebleed); Tumors of the mouth, throat, stomach or esophagus.
  • #6 Causes, Diagnosis and Treatment for Hematemesis (Vomiting Blood) | Kauvery Hospital Chennai, Hosur, Trichy, Salem, Tirunelveli, Bangalore
    https://www.kauveryhospital.com/blog/gastroenterology/what-causes-a-person-to-vomit-blood/
    Trauma (injury): Sporting injuries, vehicle collisions, accidental or intended bullet-shots and stabbing can cause severe injuries in the stomach or esophagus leading to hematemesis. […] Mallory-Weiss syndrome: Violent vomiting due to alcohol abuse can cause a tear in the esophagus called a Mallory-Weiss tear which leads to hematemesis. […] Tumours: Both benign and malignant tumours of the esophagus, stomach and pancreas can bleed once in a while leading to hematemesis. […] Angiodysplasias: Abnormal blood vessels that form on the surface of the stomach and intestines can bleed leading to bloody vomit. […] Cirrhosis (scarring of the liver) and acute liver failure (stages 3 or 4 of liver failure). […] Dieulafoy’s lesion: In this, an artery protrudes through the stomach wall abnormally. It eventually ruptures leading to hematemesis.
  • #7 Vomiting Blood (Hematemesis): Causes, Symptoms & Treatment
    https://www.acko.com/health-insurance/vomiting-blood/
    Many conditions can cause liver failure, such as chronic alcoholism, hepatitis B C infections, autoimmune conditions, etc. Liver failure results in a condition called portal hypertension, where the blood pressure inside the vessels supplying the liver becomes very high. This causes an increase in pressure in the backflow. As these portal vessels join vessels in the oesophagus and stomach, these vessels in the GI tract can rupture due to high pressure and cause profuse blood vomiting. This is an emergency and life-threatening condition. […] […] Peptic ulcers are open sores that develop on the lining of the stomach, upper small intestine, or oesophagus. If left untreated, they can cause significant bleeding, leading to blood in the vomit. These ulcers are often caused by Helicobacter pylori infection or prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs). […]
  • #8 Vomiting blood
    https://www.mayoclinic.org/symptoms/vomiting-blood/basics/definition/sym-20050732
    Vomiting blood (hematemesis) refers to significant amounts of blood in your vomit. […] Bleeding in your upper gastrointestinal tract (mouth, esophagus, stomach and upper small intestine) from peptic (stomach or duodenal) ulcers or torn blood vessels is a common cause of vomiting blood.
  • #9 Why Am I Throwing Up Blood? Key Causes and Treatment Options – BuzzRx Select permission for Location
    https://www.buzzrx.com/blog/why-am-i-throwing-up-blood
    Chronic pancreatitis (inflammation of the pancreas) can damage surrounding blood vessels, which can rupture and cause bleeding. […] Less common causes include Mallory-Weiss syndrome, benign and malignant tumors of the esophagus, stomach, or pancreas, abnormal blood vessels called angiodysplasias, and traumatic blunt force injuries to the abdomen. […] Repeated episodes of vomiting blood, large blood clots in vomited blood, bright red blood in vomit, and dark blood that looks like coffee grounds are all serious symptoms and should be evaluated on an emergency basis.
  • #10 Hematemesis (Vomiting Blood): Symptoms, Causes, Treatment
    https://www.health.com/hematemesis-vomiting-blood-8605592
    Esophageal varices: These enlarged veins in the esophagus are typically seen in people with liver disease, such as cirrhosis (extreme liver scarring and damage). […] Gastritis: This is inflammation of the stomach lining, often caused by alcohol use, chronic (long-term) vomiting, or certain medications. […] Mallory-Weiss tears: These tears occur in the lining of the esophagus due to repeated vomiting. […] Liver disease: Conditions such as cirrhosis or hepatitis (liver inflammation) can increase the risk of esophageal varices and hematemesis. […] Alcohol use: Excessive alcohol consumption can lead to gastritis, liver disease, and an increased risk of GI bleeding. […] Understanding these risk factors can help you and your healthcare providers determine whether or not you’re at a higher risk of developing hematemesis. […] Hematemesis may indicate a serious underlying condition that requires prompt diagnosis and treatment to prevent complications.
  • #11 Vomiting Blood (Hematemesis): Causes, Symptoms & Treatment
    https://www.apollohospitals.com/health-library/vomiting-blood
    Vomiting blood can be caused by serious conditions that can be a medical emergency, such as: […] Common causes of vomiting blood include: swallowing blood after a nosebleed or oral surgery, a tear in the oesophagus due to excessive coughing or vomiting, a bleeding ulcer, gastritis (stomach inflammation), severe gastroesophageal reflux disease (GERD). […] Less common and more serious causes include: Oesophagal varices, Alcoholic hepatitis, Fatty liver disease, Cirrhosis, long-term use of non-steroidal anti-inflammatory drugs (NSAIDs), Hemophilia, Anaemia, Stomach cancer, Esophageal cancer. […] There are many causes of vomiting blood. Some may be extremely severe, while some are minor.
  • #12 Vomiting blood (haematemesis) | nidirect
    https://www.nidirect.gov.uk/conditions/vomiting-blood-haematemesis
    They’re often caused by alcoholic liver disease. […] If you have severe GORD, it can irritate the lining of your oesophagus and cause bleeding. […] Long periods of retching can tear the lining of your oesophagus, which can also result in bleeding. […] It’s possible to swallow blood in certain circumstances, for example, after a severe nosebleed. […] Less commonly, blood in your vomit may be caused by swallowing poisons, such as corrosive acid or arsenic, a blood condition, such as a reduced number of platelets in the blood (thrombocytopenia), leukaemia, haemophilia or anaemia, cancer of the oesophagus or stomach cancer this is rare unless you’re over 55 years old and have lost a lot of weight.
  • #12 Vomiting blood (haematemesis) | nidirect
    https://www.nidirect.gov.uk/conditions/vomiting-blood-haematemesis
    Vomiting blood (haematemesis) could be a sign of a serious problem. […] If you are vomiting blood, the amount and colour of blood can vary. […] If you vomit blood, it means there’s bleeding somewhere in your oesophagus (the tube linking your mouth to your stomach), stomach or the first part of your small intestine (duodenum). […] Below are the most likely causes of blood in the vomit to give you a better idea what the problem may be. […] If you vomit blood and also have a burning or gnawing pain in your tummy, the most likely causes are a stomach ulcer or severe inflammation of the stomach lining (gastritis). […] Bleeding occurs when the ulcer or inflammation damages an underlying artery (blood vessel). […] Oesophageal varices are enlarged veins in the walls of the lower part of the oesophagus (tube that carries food from your mouth to your stomach).
  • #13 Your GI Center Gastroenterology – Vomiting Blood
    https://yourgicenter.com/vomiting-blood/
    Vomiting of blood can be a serious condition and usually one needs immediate medical attention. The causes could be from simple to complicated ones and a physician’s judgment is needed to discern this. The causes range from problems of the esophagus like ulcers, erosion or a tear called Mallory-Weiss tear. Stomach problems like gastritis or inflammation of stomach lining, stomach ulcer, hemorrhagic gastritis or erosive (shallow ulcers) gastritis can also cause vomiting of blood. Problems of duodenum (very upper part of small intestine) like ulcers, erosions, inflammation can also give rise to vomiting of blood. At times, small blood vessels called angiodysplasia or angiectasias can also cause vomiting of blood. […] Cancer of all of above organs is another cause of vomiting blood. Generally, it has other associated symptoms such as abdominal pain or weight loss. In patients who have known or unknown liver disease like cirrhosis, large blood vessels called varices may rupture causing dramatic and severe life threatening bleeding.
  • #14 Vomiting blood (haematemesis) | NICS Well
    https://www.nicswell.co.uk/conditions-and-treatments/vomiting-blood-haematemesis
    Prolonged retching can tear the lining of your oesophagus, which can also result in bleeding. […] It’s possible to swallow blood in certain circumstances for example, after a severe nosebleed. […] Less commonly, blood in your vomit may be caused by swallowing a poison such as corrosive acid or arsenic. […] A blood condition such as a reduced number of platelets in the blood (thrombocytopenia), leukaemia, haemophilia or anaemia. […] Oesophageal cancer or stomach cancer these types of cancer are uncommon, but they may be suspected if you’re over 55 and you’ve also lost a lot of weight.
  • #15 Vomiting Blood (Hematemesis): Causes, Symptoms & Treatment
    https://www.healthline.com/health/vomiting-blood
    Throwing up blood (hematemesis) can look like bright red blood, streaks of blood mixed with food, or dark brownish blood that looks like coffee grounds. Several conditions can cause you to vomit blood; some can be serious and even life threatening. […] Vomiting blood may also be caused by more serious conditions that can be a medical emergency, such as: internal injuries, organ bleeding, organ rupture. […] Common causes of vomiting blood include: swallowing blood following a nosebleed or oral surgery, a tear in the esophagus due to excessive coughing or vomiting, a bleeding ulcer, gastritis (stomach inflammation), severe gastroesophageal reflux disease (GERD). […] Less common and more serious causes include: esophageal varices, alcoholic hepatitis, fatty liver disease, cirrhosis, long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs), hemophilia, anemia, esophageal cancer, stomach cancer. […] Vomiting blood caused by excessive bleeding can cause shock due to internal GI bleeding. […] Vomiting blood can also lead to shock, which can be fatal and requires immediate medical attention.
  • #16 Vomiting Blood (Haematemesis): Causes and Symptoms
    https://patient.info/digestive-health/vomiting-blood-haematemesis
    Sometimes when blood is vomited, it has not come from the gut. For example, following a nosebleed, blood may be swallowed and then vomited. […] Medicines like warfarin or the newer oral anticoagulants (such as rivaroxaban, apixaban and dabigatran – often called DOACs) do not usually cause the bleeding but, if there is an underlying problem (such as an ulcer), they will make the bleeding worse.
  • #17 Vomiting Blood (Hematemesis) – Causes, Symptoms, Treatment
    https://www.metropolisindia.com/blog/preventive-healthcare/vomiting-blood-hematemesis-causes-symptoms-and-treatment
    The probable causes of Hematemesis in children are as follows: Any defects during birth; Problems in the clotting of blood; Allergy from milk; Baby swallowing blood from mother during birth; Swallowing solid objects; Deficiency in vitamin K. […] Hematemesis is an emergency for the patient and should be taken under medical supervision immediately.
  • #18 Vomiting blood | Beacon Health System
    https://www.beaconhealthsystem.org/library/symptoms/vomiting-blood?content_id=SYM-20050732
    Vomiting blood can be a symptom of a number of serious conditions. […] Vomiting blood (hematemesis) refers to significant amounts of blood in your vomit. […] Swallowed blood, as from a nosebleed or forceful coughing, may cause bloody vomit, but truly vomiting blood usually means something more serious and requires immediate medical attention. […] Bleeding in your upper gastrointestinal tract (mouth, esophagus, stomach and upper small intestine) from peptic (stomach or duodenal) ulcers or torn blood vessels is a common cause of vomiting blood. […] Vomiting blood may be caused by: Acute liver failure, Aspirin, Benign tumors of the stomach or esophagus, Cirrhosis (scarring of the liver), Defects in gastrointestinal tract blood vessels, Dieulafoy’s lesion (an artery that protrudes through the stomach wall), Duodenitis, which is inflammation of the top part of the small intestine, Esophageal cancer, Esophageal varices (enlarged veins in the esophagus), Esophagitis (inflammation of the esophagus), Gastric erosions (breakdown of tissue lining the stomach) due to H. pylori, nonsteroidal anti-inflammatory medications (NSAIDs) or other medications, Gastric varices (enlarged veins in the stomach) due to liver failure or portal hypertension, Gastritis (inflammation of the stomach lining), Gastropathy (bleeding due to dilated blood vessels in the stomach lining), Mallory-Weiss tear (tear in the esophagus associated with pressure caused by vomiting or coughing), Nonsteroidal anti-inflammatory drugs, Pancreatic cancer, Pancreatitis, Peptic ulcer, Portal hypertension (high blood pressure in the portal vein), Prolonged or vigorous vomiting, Stomach cancer. […] In infants and young children, vomiting blood may also result from: Birth defects, Blood-clotting disorders, Milk allergy, Swallowed blood, such as from the nose or from the mother during birth, Swallowed object, Vitamin K deficiency.
  • #19 Why do People Vomit Blood? Causes of Blood in Vomit: Hamid Kamran, MD, FACG: Gastroenterologist
    https://www.agstexas.com/blog/why-do-people-vomit-blood-causes-of-blood-in-vomit
    Vomiting blood, also called hematemesis, refers to the presence of substantial amounts of blood in the vomit. […] What illnesses or issues can cause a person to vomit blood? There are many potential causes some of the major ones can include, Liver Failure, Aspirin, Other liver conditions such as cirrhosis or hepatitis, Esophagitis or other Esophageal conditions, Stomach cancer, Pancreatic cancer, Gastric erosions, Gastric varices, And many other possible conditions. […] Instead, there are many potential causes for this condition, and therefore anyone afflicted with this issue should seek a doctors advice as soon as possible. […] In children, the vomiting of blood may also be caused by other issues. Common causes of bloody vomit in children include birth defects, milk allergies, or even a swallowed object. […] One should also be aware that in adults, blood streaks in vomit can often be caused by swallowed blood. For example, for those who experience nosebleeds, some amount of blood in vomit would be expected.